The ink system in the 1050c printer includes three components: a print head, a printhead cleaner, and ink cartridge to provide large-capacity ink, unattended printing, ease-of-use, reliability, and low cost. The ink system offers true 600 dpi and new advanced dithering algorithms for exceptional image quality prints.

Each 600-dpi thermal Inkjet printhead applies ink droplets onto the paper and has a reservoir that holds enough ink for several prints. The printer automatically refills the print head from the ink cartridge whenever the ink volume in the printhead reservoir becomes low.

The printer uses the printhead cleaners to clean and maintain the print heads to ensure best possible image quality, and to seal the print heads when they are not in use to ensure long life.

The ink system components (the print head, the printhead cleaner, and the ink cartridge) are called the HP80 ink supplies, and they are coded with an HP80 icon to help with ordering the correct replacement components.

Each color ink cartridge (cyan, magenta, yellow, and black) can be purchased separately from HP retailers and should be purchased when an existing ink cartridge is low to print continuously.

A printhead and a printhead cleaner are supplied as a single unit and should always be installed as a matched pair. They do not require replacement every time a new ink cartridge is installed in the printer. It is only necessary to replace a print head and printhead cleaner when the existing components are time expired.

The US Federal Communications Commission (in 47 cfr 15.105) has specified that the following notice be brought to the attention of those using this product.

This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions:

This device may not cause harmful interference.

This device must accept any interference received, including interference that may cause undesired operation.

caution:

Pursuant to Part 15.21 of the FCC Rules, any changes or modifications to this equipment not expressly approved by the Hewlett-Packard Company, may cause harmful interference and void the FCC authorization to operate this equipment.

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, you are encouraged to try to correct the interferences by one or more of the following measures:

Reorient the receiving antenna.

Increase the separation between the equipment and the receiver.

Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

Consult the dealer or an experienced radio/TV technician for help.

You may find useful the following booklet prepared by the FCC: "How to Identify and Resolve Radio-TV Interference Problems". This booklet is available from the US Government Printing Office, Washington, DC 20402, and Stock No. 004-000-00345-4.

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a commercial environment. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at their own expense.

This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications.

When connected to LAN cables using print server accessories, this digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications.

The HP Designjet 1050c and 1055cm printers, models C6074 and C6075, are approved under Approval Number NS/G/1234/5/100003 for indirect connection to public telecommunication systems within the United Kingdom.